|
Scientific Name | Conophytum marginatum Lavis subsp. littlewoodii (L.Bolus) S.A.Hammer |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Conophytum littlewoodii L.Bolus, Conophytum marginatum Lavis var. littlewoodii (L.Bolus) Rawé |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2020/02/08 |
Assessor(s) | A.J. Young & D. Raimondo |
Justification | This taxon has a highly restricted range in ridges along the banks of the Orange River east of Goodhouse, with a regional extent of occurrence (EOO) of 50 km². Three locations are potentially threatened by illegal collecting and loss of habitat to mining. With the same potential pressures present in both South Africa and Namibia the regional category is not adjusted. |
Distribution |
Endemism | Not endemic to South Africa |
Provincial distribution | Northern Cape |
Range | North-western Bushmanland and southern Namibia, close to the Orange River. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Desert |
Description | Shaded cracks and crevices on quartz and vertical cliff faces. |
Threats |
| There is a potential threat from illegal collection as the taxon is popular with growers. It is also likely to be threatened by habitat loss to mining. |
Population |
This rare and localized subspecies is known from four subpopulations in South Africa, and one in Namibia. The habitat is generally inaccessible and still relatively poorly explored. The population size is therefore difficult to estimate.
|
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Conophytum marginatum Lavis subsp. littlewoodii (L.Bolus) S.A.Hammer | Rare | 2017.1 | | Conophytum marginatum Lavis subsp. littlewoodii (L.Bolus) S.A.Hammer | VU D2 | 2015.1 | | Conophytum marginatum Lavis subsp. littlewoodii (L.Bolus) S.A.Hammer | Rare | Raimondo et al. (2009) | |
Bibliography |
Hammer, S. 2002. Dumpling and his wife: New view of the genus Conophytum. EAE Creative Colour, Norwich.
Hammer, S.A. 1993. The genus Conophytum: A conograph. Succulent Plant Publications, Pretoria.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
|
Citation |
| Young, A.J. & Raimondo, D. 2020. Conophytum marginatum Lavis subsp. littlewoodii (L.Bolus) S.A.Hammer. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/17 |
Comment on this assessment
